Home / 70,432.16-105,610.08-30,943.04

Finding the Fourth Proportional to 70,432.16, 105,610.08 and 30,943.04

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Solution

The fourth proportional to 70,432.16, 105,610.08 and 30,943.04 is: 46,397.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,432.16 : 105,610.08 = 30,943.04 : x
  2. Step 2: Convert to fraction form
    70,432.16/105,610.08 = 30,943.04/x
  3. Step 3: Cross multiply
    70,432.16x = 105,610.08 × 30,943.04
  4. Step 4: Simplify right side
    70,432.16x = 3,267,896,929.84
  5. Step 5: Solve for x
    x = 3,267,896,929.84/70,432.16
  6. Step 6: Final answer
    x = 46,397.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.